68564158 has 8 divisors (see below), whose sum is σ = 110757528. Its totient is φ = 31644984.

The previous prime is 68564147. The next prime is 68564233. The reversal of 68564158 is 85146586.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1318516 + ... + 1318567.

It is an arithmetic number, because the mean of its divisors is an integer number (13844691).

Almost surely, 2^68564158 is an apocalyptic number.

68564158 is a deficient number, since it is larger than the sum of its proper divisors (42193370).

68564158 is a wasteful number, since it uses less digits than its factorization.

68564158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637098.

The product of its digits is 230400, while the sum is 43.

The square root of 68564158 is about 8280.3476980137. The cubic root of 68564158 is about 409.2911766141.

The spelling of 68564158 in words is "sixty-eight million, five hundred sixty-four thousand, one hundred fifty-eight".